4　Approach of Raw Materials and Finished Products

4.1　General Requirements

4.1.1　This chapter is applicable for the site acceptance of main materials，parts/components，finished products，standard pieces and other products before they enter the construction site of every sub-item work of structure for mobile communication steel tower and mast.

4.1.2　In principle，the inspection lots for the site acceptance shall be in accordance with that of sub-item works.However，the inspection lots may be divided according to the scale of construction and the actual situation of charge-in.

4.1.3　Sets of high-strength bolt shall be acceptable according to the Code for acceptance of construction quality of steel structures（GB 50205-2001）.